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80012892 = 2236667741
BaseRepresentation
bin1001100010011…
…10011001011100
312120120002001110
410301032121130
5130440403032
611534542020
71661045511
oct461163134
9176502043
1080012892
114118a963
1222967910
131376620b
14a8ab308
1570577cc
hex4c4e65c

80012892 has 12 divisors (see below), whose sum is σ = 186696776. Its totient is φ = 26670960.

The previous prime is 80012887. The next prime is 80012903. The reversal of 80012892 is 29821008.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333859 + ... + 3333882.

Almost surely, 280012892 is an apocalyptic number.

It is an amenable number.

80012892 is an abundant number, since it is smaller than the sum of its proper divisors (106683884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80012892 is a wasteful number, since it uses less digits than its factorization.

80012892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667748 (or 6667746 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 80012892 is about 8944.9925656761. The cubic root of 80012892 is about 430.9100825732.

The spelling of 80012892 in words is "eighty million, twelve thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 6667741 13335482 20003223 26670964 40006446 80012892